2.4.0

• Do some "auto mode" improvements
• Add control by the Serial Port
• Create variables for head_min, head_avg, head_max, body_min etc
• Create a Perl program prototype to send commands for Arduino using serial port
• Add sound library and a play_sound function to play sounds
• Add 4 sounds: Ta-Ta-Ta-Ta-Ta Ta-Ta, Star Wars, Imperial March and James Bond
• Add Ta-Ta sound to move_check function
• Add move_monitor_left, move_monitor_right and move_monitor_center functions
• Add MyDroid.pl script to send commands to MyDroid through Serial Port